CN104325601A - Spherical surface printing method - Google Patents
Spherical surface printing method Download PDFInfo
- Publication number
- CN104325601A CN104325601A CN201410551201.0A CN201410551201A CN104325601A CN 104325601 A CN104325601 A CN 104325601A CN 201410551201 A CN201410551201 A CN 201410551201A CN 104325601 A CN104325601 A CN 104325601A
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- CN
- China
- Prior art keywords
- injection
- substrate layer
- film
- molding film
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
- B29C45/14655—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components connected to or mounted on a carrier, e.g. lead frame
- B29C45/1468—Plants therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
- B29C2045/14704—Coating articles provided with a decoration ink decorations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
- B29L2022/002—Globes
Abstract
The invention discloses a spherical surface printing method characterized by comprising the following steps: (1) preparing a flexible plastic substrate layer, arranging a printing layer on the surface of the flexible plastic substrate layer to obtain a double-layer structural thermoplastic molding film; (2) using a fixture for putting the molding film obtained by the step (1) into an injection mold, wherein the substrate layer faces towards the injection mold cavity wall, and the inner cavity wall of the injection mold is provided with a concave and convex curved surface, gradually heating and warming the molding film in the mold to produce uniform and progressive plastic deformation, gradually deforming the molding film for fitting, and finally melting the molding film to adhere to the inner cavity wall of the injection mold when the temperature reaches the gel point to change the molding film into a concave and convex curved surface matched with the inner cavity wall of the injection mold; 3) using an injection molding machine for injecting into the injection mold of the step (2); and (4) after the injection is completed, using cooling water for cooling of the injection mold, and in the cooling process, bonding the molding film with a molded product, and adhering the molding film to the molded product to complete the spherical surface printing.
Description
Technical field
The present invention relates to print field, be specifically related to a kind of concave-convex curved surface printing process for soft concave surface, sphere continuous print, exquisite, that area is larger picture and text.
Background technology
Many methods are had at spherome surface printing figure message, the main following three kinds of situations of concave-convex curved surface printing in the market: 1, water transfer method or water toga method, in certain hour after utilizing water compatible film to contact water, there is tensility, printing figure message layer alignment with the ball outer surface is carried out stretching laminating, can outside ball on everywhere form continuous print picture and text, but scheme not meticulous, stretch also irregular; 2, oil spout method: the ink of different colours is injected in outer surface of ball thing with spray gun, the method cannot make transition tone, and pattern is main mainly with thick lines; 3, transfer printing: utilize the principle of the transmission ink of silica gel at outer surface of ball printing figure message, the method needs repeatedly reciprocal printing just can obtain the picture and text of small size, and fine degree is not high yet.
Above three kinds of method costs are high, can not obtain fine degree high, and the printing figure message that area is larger, after long-time use, printing figure message easily comes off, and larger to the pollution of environment.
Some businessmans adopt printing technology in mould, but it is in injection moulding process, due to pressure and flow velocity problem, printing figure message can be caused to be out of shape or to fog, affect printing effect.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of printing figure message meticulous, and the concave-convex curved surface printing process that printing figure message will be made to be out of shape, to fog because of injection moulding.
The technical scheme that the present invention is adopted for achieving the above object is:
A kind of spherical surface printing process, it comprises the following steps:
(1) prepare a soft plastic substrate layer, and printed layers is set on this soft plastic substrate layer surface, obtain the thermoplasticity plastotype film of pair of lamina structure;
(2) with the plastotype film that step (1) obtains by fixture, substrate layer towards injection moulding die cavity wall, put into internal chamber wall and be provided with in the injection mould of concave-convex curved surface, and in mould, this plastotype film is heated gradually, heated up, it is made to produce even, progressive plastic deformation, progressively be out of shape laminating, last thawing when temperature reaches gel point is attached on injection mould internal chamber wall, make it become the concave-convex curved surface matched with injection mould internal chamber wall;
(3) in step (2) described injection mould, injection moulding is carried out with injection machine;
(4) after injection moulding completes, with cooling water, cool injection mould, in cooling procedure, plastotype film and mechanograph bond, and are attached on mechanograph, complete concave-convex curved surface printing.
Described step (1) also comprises the steps:
After described soft plastic substrate layer surface arranges printed layers, printed layers sprays one deck thermoplasticity protection liquid, or thermoplasticity diaphragm, obtain the plastotype film of a three-decker.
Described soft plastic substrate, diaphragm, injection material are the transparent elastomer that TPR or TPU material is made.
Step (1) described printed layers adopts thermoplastic oil ink material, by flexographic printing, serigraphy, intaglio printing or offset lithography, is printed on the printed layers soft plastic substrate layer being formed pyroplastic deformation synchronous with this substrate layer.
Described thermoplastic oil ink material mixes obtained by each component by following parts by weight:
Heating-up temperature in described step (2) is 180 ~ 250 DEG C, and firing rate is 10 ~ 20 DEG C/min.
Described step (3) specifically comprises the following steps:
(31) to injection mould heating, temperature in mould is remained on 180 ~ 250 DEG C;
(32) to injection mould injection moulding, wherein, injection pressure is 50 ~ 70MPa, injection time 4 ~ 8s, dwell pressure 10 ~ 20MPa, dwell time 20 ~ 30s;
(33) in injection moulding process, material is injected bonding with the soft plastic substrate layer being in gelatinized.
Described sphere, for surface is provided with soft concavo-convex spheroid, spherical surface body or other continuous print curved bodies.
The invention has the beneficial effects as follows: concave-convex curved surface printing process of the present invention, by arranging thermoplasticity plastotype film, and after thermoplasticity plastotype film is placed in carries out plastic deformation in injection mould, to cool through injection moulding, plastotype film and mechanograph are bonded, and be attached on mechanograph, printing figure message will be made to be out of shape, to fog because of injection moulding, thus the meticulous printing figure message of picture and text can be obtained.
Between the printing figure message printed by the inventive method and mechanograph, cohesive is high, printing figure message difficult drop-off.Because picture and text have been attached to spheroid inner surface when injecting plastic forming, which reduces later stage typography, thus decrease cost and the pollution of later stage printing to environment.
Detailed description of the invention
Embodiment: the present embodiment provides a kind of printing process of sphere, and it comprises the following steps:
(1) prepare a soft plastic substrate layer, and printed layers is set on this soft plastic substrate layer surface, obtain the thermoplasticity plastotype film of pair of lamina structure;
(2) with the plastotype film that step (1) obtains by fixture, substrate layer towards injection moulding die cavity wall, put into internal chamber wall and be provided with in the injection mould of concave-convex curved surface, and in mould, this plastotype film is heated gradually, heated up, it is made to produce even, progressive plastic deformation, progressively be out of shape laminating, last thawing when temperature reaches gel point is attached on injection mould internal chamber wall, make it become the concave-convex curved surface matched with injection mould internal chamber wall;
(3) in step (2) described injection mould, injection moulding is carried out with injection machine;
(4) after injection moulding completes, with cooling water, cool injection mould, in cooling procedure, plastotype film and mechanograph bond, and are attached on mechanograph, complete concave-convex curved surface printing.
Described step (1) also comprises the steps:
After described soft plastic substrate layer surface arranges printed layers, printed layers sprays one deck thermoplasticity protection liquid, or thermoplasticity diaphragm, obtain the plastotype film of a three-decker.
Described soft plastic substrate, diaphragm are the transparent elastomer that TPR or TPU material is made.
Step (1) described printed layers adopts thermoplastic oil ink material, by flexographic printing, serigraphy, intaglio printing or offset lithography, is printed on the printed layers soft plastic substrate layer being formed pyroplastic deformation synchronous with this substrate layer.
Described thermoplastic oil ink material mixes obtained by each component by following parts by weight:
Heating-up temperature in described step (2) is 180 ~ 250 DEG C, and firing rate is 10 ~ 20 DEG C/min.
Described step (3) specifically comprises the following steps:
(31) to injection mould heating, temperature in mould is remained on 180 ~ 250 DEG C;
(32) to injection mould injection moulding, wherein, injection pressure is 50 ~ 70MPa, injection time 4 ~ 8s, dwell pressure 10 ~ 20MPa, dwell time 20 ~ 30s;
(33) in injection moulding process, material is injected bonding with the soft plastic substrate layer being in gelatinized.
Described sphere, for surface is provided with soft concavo-convex spheroid, spherical surface body or other continuous print curved bodies.
But the foregoing is only better possible embodiments of the present invention, and be not used to limit to the scope of the claims of the present invention, therefore the equivalent structure change that all utilizations description of the present invention is done, be all included in protection scope of the present invention.
Claims (5)
1. a spherical surface printing process, is characterized in that, it comprises the following steps:
(1) prepare a soft plastic substrate layer, and printed layers is set on this soft plastic substrate layer surface, obtain the thermoplasticity plastotype film of pair of lamina structure;
(2) with the plastotype film that step (1) obtains by fixture, substrate layer towards injection moulding die cavity wall, put into internal chamber wall and be provided with in the injection mould of concave-convex curved surface, and in mould, this plastotype film is heated gradually, heated up, it is made to produce even, progressive plastic deformation, progressively be out of shape laminating, last thawing when temperature reaches gel point is attached on injection mould internal chamber wall, make it become the concave-convex curved surface matched with injection mould internal chamber wall;
(3) it comprises in step (2) described injection mould, to carry out injection moulding with injection machine:
(31) to injection mould heating, temperature in mould is remained on 180 ~ 250 DEG C;
(32) to injection mould injection moulding, wherein, injection pressure is 50 ~ 70MPa, injection time 4 ~ 8s, dwell pressure 10 ~ 20MPa, dwell time 20 ~ 30s;
(33) in injection moulding process, material is injected bonding with the soft plastic substrate layer being in gelatinized;
(4) after injection moulding completes, with cooling water, cool injection mould, in cooling procedure, plastotype film and mechanograph bond, and are attached on mechanograph, complete sphere printing.
2. spherical surface printing process according to claim 1, is characterized in that, described step (1) also comprises the steps:
After described soft plastic substrate layer surface arranges printed layers, printed layers sprays one deck thermoplasticity protection liquid, or thermoplasticity diaphragm, obtain the plastotype film of a three-decker.
3. spherical surface printing process according to claim 2, is characterized in that, described injection material is the transparent elastomer that TPR or TPU material is made.
4. spherical surface printing process according to claim 1, it is characterized in that, step (1) described printed layers, adopt thermoplastic oil ink material, by flexographic printing, serigraphy, intaglio printing or offset lithography, be printed on the printed layers soft plastic substrate layer being formed pyroplastic deformation synchronous with this substrate layer.
5. spherical surface printing process according to claim 3, is characterized in that, the heating-up temperature in described step (2) is 180 ~ 250 DEG C, and firing rate is 10 ~ 20 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551201.0A CN104325601A (en) | 2014-10-16 | 2014-10-16 | Spherical surface printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551201.0A CN104325601A (en) | 2014-10-16 | 2014-10-16 | Spherical surface printing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104325601A true CN104325601A (en) | 2015-02-04 |
Family
ID=52400469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410551201.0A Pending CN104325601A (en) | 2014-10-16 | 2014-10-16 | Spherical surface printing method |
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| CN (1) | CN104325601A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347703A (en) * | 2018-12-24 | 2020-06-30 | 深圳市好年璟科技有限公司 | Manufacturing method of mobile phone rear cover with 3D effect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3861955A (en) * | 1964-12-29 | 1975-01-21 | Jerome H Lemelson | Decorating method |
| CN101024308A (en) * | 2006-02-24 | 2007-08-29 | 龙伟实业股份有限公司 | Wear-resisting sphere piece making method |
| CN101528438A (en) * | 2006-10-31 | 2009-09-09 | 拜尔材料科学股份公司 | Printing deformable films |
| CN102717485A (en) * | 2012-06-25 | 2012-10-10 | 佛山市南海华达模具塑料有限公司 | Compound veneering injection mold and formation technology thereof |
-
2014
- 2014-10-16 CN CN201410551201.0A patent/CN104325601A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3861955A (en) * | 1964-12-29 | 1975-01-21 | Jerome H Lemelson | Decorating method |
| CN101024308A (en) * | 2006-02-24 | 2007-08-29 | 龙伟实业股份有限公司 | Wear-resisting sphere piece making method |
| CN101528438A (en) * | 2006-10-31 | 2009-09-09 | 拜尔材料科学股份公司 | Printing deformable films |
| CN102717485A (en) * | 2012-06-25 | 2012-10-10 | 佛山市南海华达模具塑料有限公司 | Compound veneering injection mold and formation technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 潘祖仁，邱文豹，王贵恒: "《塑料工业手册 聚氯乙烯 第一版》", 31 August 1999, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347703A (en) * | 2018-12-24 | 2020-06-30 | 深圳市好年璟科技有限公司 | Manufacturing method of mobile phone rear cover with 3D effect |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |
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| RJ01 | Rejection of invention patent application after publication |